TWO EXPLOSIONS Went off at an Ariana Grande concert in Manchester, England on Monday night.
SEVERAL FATALITIES REPORTED — And many others were injured in the blasts.
The Manchester arena holds 21,000 people.
ISIS released detailed instructions on how to make home-made bombs in November.
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— Rita Katz (@Rita_Katz) May 23, 2017
ISIS released a video on how to build a homemade bomb back in November.